C2PA GPS

[Neal Krawetz]

Ugh, ignoring how C2PA doesn't authenticate or validate anything and doesn't even deter forgeries...
Implementations seem to ignore the C2PA specifications.

In the JUMBF block, there's often a JSON storing metadata. According to the spec, GPS coordinates should be in DMS format:
"exif:GPSLatitude": "39,21.102N",
"exif:GPSLongitude": "74,26.5737W",

Truepic:
EXIF:GPSLatitude               : 42.959801300000
EXIF:GPSLongitude              : -77.466807500000

( And reported in the CAI discord channel: )
Click App => "exif:GPSLatitude": "37 deg 52' 42.61 N"
Nikon => "exif:GPSLatitude": "40,44.1861N"
Proofmode => "exif:GPSLatitude": 36°58'37.381" N

I don't have examples from Click App, Nikon, or Proofmode, but I'm wondering if exiftool can handle the different formats?

[Phil Harvey]

ExifTool will likely handle these formats due to its flexible way of handling GPS coordinates (see FAQ 14).

- Phil